Ha yes my low self esteem led to my marriage to man two years younger than me. My realised self esteem led to me divorcing him, creating a great life and marrying my new man 26 years older than me.
To bust some more sterotypes ... at 73
He's working full time, happily
He's fitter than me
I have more long term health issues at 46
We have a great sex life - no viagara yet (much better than the husband in his 30s)
We have no generational issues apart from me talking about historical stuff and him having lived through it 
Oh and to buck the trend I earn more than him.
His hearing is getting slightly dodgy but my eye sight is worse
Yes that could all change soon (And I'm imagining some people on here rubbing their hands in glee) but I love him. I'd rather care for him than be without. And seeing so many relationships I'd rather have him and us for however long than many same age marriages.
It seems ageist comments are still accepted however...
It's about the individual not a stereotype